1 Public Health Foundation of India, Institutional Area Gurgaon 122002, India. Electronic address: kabir.sheikh@phfi.org.
2 National Health Systems Resource Centre, New Delhi, India.
3 Public Health Foundation of India, Institutional Area Gurgaon 122002, India.
4 The Alliance for Health Policy and Systems Research, World Health Organization, Geneva, Switzerland.
5 Indian Council of Medical Research, New Delhi, India; Department of Health Research, Ministry of Health and Family Welfare, Government of India, New Delhi, India.